I have recently (finished and made public in late March 2020) rewritten the code underlying this site. Apart from some bug fixes and a few new features there should be no visible changes because of this, but please let me know if I’ve damaged something. Here is some more information on these changes.
In early 2008 I changed the scheme used for attaching opus numbers to compositions. There is a list of the mapping of old numbers to new numbers.
The following compositions have recently been added to this collection.